app.js

app.js

 constructor(props, context) {
    super(props, context);
    this.state = {
      galleryItems: [],
    };
}
 getData (){
    axios.get(`https://picsum.photos/v2/list?limit=6`, {})
        .then(res => {
                const data = res.data
              const img = data.map(m => 
                <img src={m.download_url} alt=""/>
              )
              this.setState({
                galleryItems: img
              })
            }).catch((error) => {
                console.log(error)
            })
  }
  responsive = {
    0: { items: 1 },
    1024: { items: 2 },
  }
  componentDidMount() {
   this.getData()
}